丽水学院学报2026，Vol.48Issue(2)：15-20,6.DOI:10.3969/j.issn.2095-3801.2026.02.002
土工布加筋粗粒土强度变形特性三轴试验研究
Study on Triaxial Tests of Strength and Deformation Characteristics of Coarse-Grained Soil Reinforced with Geotextile
摘要
Abstract
This study conducted medium conventional triaxial consolidated-drained shear tests on coarse-grained soil reinforced with geotextile and plain coarse-grained soil to investigate their differences in deformation and strength characteristics.The results show that there is little difference between the linear shear strength index φ of reinforced coarse-grained soil and the corresponding value of plain coarse-grained soil.But the cohesion c increases significantly,and the strength reinforcement effectiveness coefficients R under various confining pressures all exceed 1.The shear dilatancy of coarse-grained soil significantly decreases after reinforcement,and the reinforced material effectively limits the lateral deformation of the soil mass.There is a good power function relationship between the failure shear dilatancy rate df and the confining pressure σ3 of both reinforced coarse-grained soil and plain coarse-grained soil.After reinforcement,the initial elastic modulus Ei and the secant bulk modulus K1 of coarse-grained soil are both significantly higher than those of plain coarse-grained soil,and there is a good linear relationship between Ei and σ3 and a good power function relationship between K1 and σ3.关键词
粗粒土/加筋/变形/强度/三轴试验Key words
coarse-grained soil/reinforcement/deformation/strength/triaxial test分类
建筑与水利引用本文复制引用
朱华藏,褚福永,朱俊高,许凯,翁厚洋..土工布加筋粗粒土强度变形特性三轴试验研究[J].丽水学院学报,2026,48(2):15-20,6.基金项目
浙江省教育厅一般科研项目"粗粒土橡皮膜嵌入与状态相关性试验研究"(Y202352459) （Y202352459）
温州职业技术学院人才引进科研启动项目"粗粒土强度变形缩尺效应影响规律三轴试验研究"(RC202306) （RC202306）
成都大学非饱和土重点实验室开放基金项目"级配对K0固结条件下粗粒土强度变形影响规律及其本构模型研究"(SC-FBHT2024-04) （SC-FBHT2024-04）
